Find the 10th term and the 20th term of the AP 5,1,-3,-7

1.	Find the 10th term and the 20th term of the AP 5,1,-3,-7
Answer» Corect answer is -71 Wrong answer a10 = a + 9d = 5+9(-4) = 5-36 = -31A11= a + 10 d = 5+10(-4) = 5-40 = -35

Discussion